51203540424 has 32 divisors (see below), whose sum is σ = 133574454720. Its totient is φ = 16325766336.

The previous prime is 51203540407. The next prime is 51203540429. The reversal of 51203540424 is 42404530215.

It is a junction number, because it is equal to n+sod(n) for n = 51203540391 and 51203540400.

It is not an unprimeable number, because it can be changed into a prime (51203540429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46379467 + ... + 46380570.

It is an arithmetic number, because the mean of its divisors is an integer number (4174201710).

Almost surely, 2^51203540424 is an apocalyptic number.

It is an amenable number.

51203540424 is an abundant number, since it is smaller than the sum of its proper divisors (82370914296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51203540424 is a wasteful number, since it uses less digits than its factorization.

51203540424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92760069 (or 92760065 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 51203540424 in words is "fifty-one billion, two hundred three million, five hundred forty thousand, four hundred twenty-four".